Stage V Motorlu Traktörlerde Kuyruk Mili Verimi

Öz

Bu çalışmada, farklı motor ve şanzıman kombinasyonlarında meydana gelen güç kayıplarının belirlenmesi ve en uygun motor-transmisyon eşleşmesinin ortaya konulması amaçlanmıştır. Bu kapsamda, Stage V emisyon standartlarına sahip 32 traktörde motor gücü ile kuyruk mili gücü arasındaki ilişki incelenmiştir. OECD Kod 2 testlerine ait TAMTEST verileri, motor tip onay belgelerinde yer alan güç değerleri ile karşılaştırılmıştır. Test traktörlerindeki transmisyon sistemleri 8+8, 12+12, 24+24, 16+8 ve 16+16 vites oranlarına sahip olup, toplam altı farklı transmisyon tipi ve dört farklı regülasyona sahip motor kullanılmıştır. Çalışmada OECD Kod2 standartlarına göre TAMTEST Test Merkezi tarafından gerçekleşen Erkunt Stage V traktörlerine ait test raporları incelenmiş ve elde edilen veriler altı farklı sistemsel grupta sınıflandırılmıştır. Elde edilen sonuçlara göre, efektif motor gücü ile traktör kuyruk mili çıkış gücü arasında belirgin farklar olduğu tespit edilmiştir. İncelenen 32traktör arasında en yüksek motor gücü 88.0 kW ve en düşük motor gücü ise 38.7 kW olarak ölçülmüştür. En yüksek kuyruk mili verim kaybı %18.34 iken, en düşük verim kaybı ise %4.29 olarak hesaplanmıştır. Ortalama verim kaybı değerleri üzerinden yapılan değerlendirmede, transmisyon ailelerinin verim sıralamasının B

Anahtar Kelimeler

• Stage V motor
• OECD Kod2
• Kuyruk mili performans testi
• Motor ile kuyruk mili verimi
• Traktör PTO gücü

PTO Efficiency in Tractors Equipped with Stage V Engines

Öz

In this study, the aim was to determine the power losses occurring in different engine and transmission combinations and to identify the most efficient engine–transmission matching. In this context, the relationship between engine power and power take-off (PTO) output power was analyzed in 32 tractors equipped with Stage V emission standard engines. The TAMTEST data obtained from OECD Code 2 tests were compared with the power values specified in the engine type approval documents. The transmission systems of the tested tractors featured gear configurations of 8+8, 12+12, 24+24, 16+8, and 16+16, representing six different transmission types and four different engine regulations. Test reports of Erkunt Stage V tractors, conducted by the TAMTEST Test Center in accordance with the OECD Code 2 standard, were examined, and the obtained data were classified into six distinct system groups. The results revealed significant differences between the effective engine power and the tractor’s PTO output power. Among the 32 tractors examined, the highest engine power was measured as 88.0 kW, while the lowest was 38.7 kW. The maximum PTO power loss was calculated as 18.34%, and the minimum as 4.29%. Based on the average power loss values, the efficiency ranking of the transmission families was determined as B < E < C < F < A < D. Accordingly, the lowest power loss was observed in the B family, while the highest occurred in the D family.

Anahtar Kelimeler

• Stage V engine
• Power take-off shaft performance test
• Engine and power take-off shaft efficiency
• OECD Code2
• Tractor PTO power

Kaynakça

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